movie‣ In their moving documentary Detropia, directors Heidi Ewing and Rachel Grady look at the once great city of Detroit, effectively abandoned and a ghost of itself—though occasionally a very beautiful ghost. It's playing now at IFC. Grady will be in person at the 6:10 screening this Saturday.

indie music/theater‣ One of the things we liked most about the Broadway musical Once is the proof that an indie vibe can find a home in that unlikely quarter. So we're cheering on PigPen Theatre Co., a gaggle of fledgling Carnegie Mellon theater grads who have a) an indie vibe b) an off-Broadway show called The Old Man and the Old Moon starting September 26 (details), and c) an indie-folk album Bremen that we like. A lot. You can catch them at Joe's Pub on October 15 and three dates after that in November and December. [Image: Eli Dagostino]

art‣ Artist Richard Estes, who moved from Illinois to New York in 1959, has made the city a recurring subject in his paintings. A show of his work, New York by Night, opens tonight at Marlborough Gallery, 40 W. 57th [5th/6th] 212.541.4900.